空间四边形OABC中,
,
,
,点M在OA上,且
,点N为BC中点,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a516d33f36ad55d977aee8057f504ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87764e4b15b538bcbd07a776ea3a5a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5614cb7814589d1b1fb95fbafa0bf4a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31d4278df5b35f150b6b7952632fd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7c19ffd67b5edd77b02d893f3c4156.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
2018高一下·全国·专题练习 查看更多[1]
(已下线)2018年5月19日 周末培优——《《每日一题》2017-2018学年高一数学人教必修4
更新时间:2018-06-04 23:37:28
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